Achronix ACE Version 5.0 User Manual
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Chapter 3. Concepts
Select
Enabled
This radio button controls the action applied to objects in
the selection region. This setting causes the objects to be
added to the current ACE selection set.
Deselect
Disabled
This radio button controls the action applied to objects in
the selection region. This setting causes the objects to be
removed from the current ACE selection set.
Remove Placement
Disabled
This radio button controls the action applied to enabled
objects in the selection region. This setting causes the placed
instances to be un-placed.
Placement
The
Placement options control the drag-and-drop placement behavior in the Package view.
Placement Options
Option
Default
Description
Fixed Placement
Enabled
This option controls whether the placement of an instance
should be fixed or soft. Fixed placements are not changed by
the placer. Soft placements are taken as a placement hint and
may be changed by the placer.
(1)
Note:
(1)
Fixed placement should always be used to pre-place objects.
Tool Tip Text
The
Tool Tip Text options control the tooltip content while hovering over objects in the
Package view.
Tooltip Options
Option
Default
Description
Pad Site Names
Enabled
Displays the pad site name under the current mouse
position in the tooltip text.
Ball Names
Enabled
Displays the package ball name under the current mouse
position in the tooltip text.
Group Names
Enabled
Displays the I/O group name under the current mouse
position in the tooltip text.
IO Port Names
Enabled
Displays the device port (FPGA I/O) name under the
current mouse position in the tooltip text.
IO Use
Enabled
Indicates the group type: B = byte lane; G = general
purpose; C = clock capable
IO LVDS Polarity
Enabled
Displays the polarity (P or N) of the I/O buffer under the
current mouse position in the tooltip text. P = positive
polarity; N = negative polarity
IO Clock and Reset
Capability
Enabled
Displays the clock and reset capability of the I/O buffer
under the current mouse position in the tooltip text. D =
data only; RD = reset and data capable; CRD = clock, reset,
and data capable.
Instance Names
Enabled
Displays the netlist instance name of placed I/O under the
current mouse position in the tooltip text.
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